﻿using System;
using System.Windows;
using System.Windows.Data;

namespace MyFramework.Converters
{
    /// <summary>
    /// bool to visible converter
    /// </summary>
    [ValueConversion(typeof(object), typeof(Visibility))]
    public class BoolToVisibleConverter : IValueConverter
    {
        /// <summary>
        /// Converts a value.
        /// </summary>
        /// <param name="value">The value produced by the binding source.</param>
        /// <param name="targetType">The type of the binding target property.</param>
        /// <param name="parameter">The converter parameter to use.</param>
        /// <param name="culture">The culture to use in the converter.</param>
        /// <returns>
        /// A converted value. If the method returns null, the valid null value is used.
        /// </returns>
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value != null && value is bool && (bool)value == true)
                return Visibility.Visible;
            else
                return Visibility.Collapsed;
        }
        /// <summary>
        /// Converts a value.
        /// </summary>
        /// <param name="value">The value that is produced by the binding target.</param>
        /// <param name="targetType">The type to convert to.</param>
        /// <param name="parameter">The converter parameter to use.</param>
        /// <param name="culture">The culture to use in the converter.</param>
        /// <returns>
        /// A converted value. If the method returns null, the valid null value is used.
        /// </returns>
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value != null && value is Visibility)
            {
                return (Visibility)value == Visibility.Visible;
            }
            else
            {
                return false;
            }
        }
    }
}
